South African President Jacob Zuma has invited President John Evans Atta Mills for discussions on investments for mutual benefits.The invitation was made in a message delivered by the South African Minister for International Affairs and Co-operation, Mrs. Maite Nkoana Mashabame at the Osu Castle in Accra on Wednesday.President Mills receiving the message called on African leaders to focus on issues that would unite Africans."We should use the available natural resources to improve the living standards of our people," he added.President Mills said Ghana valued her relationship with South Africa and participated in the anti-apartheid struggle adding, "Ghana and South Africa have a lot in common and should exchange ideas on issues of common interest and her great potentials".Mrs. Mashabame commended Ghana for her democratic credentials, good governance, rule of law and ECOWAS, a bloc for stronger African Union (AU).She stressed the need for collaboration of efforts among African countries to make the Continent maintain peace, security and development.Mrs. Mashabame said South Africa was working towards the upgrading of its agrarian practice and investment in food security, and prepared to learn from other countries.She extended South Africa's invitation to competing African countries to the FIFA World Cup tournament this year.Source: GNA